Representation of Mean Precipitation and Decadal Variability in Atmosphere Models

In this thesis, I investigated how decadal sea surface temperature variability affects precipitation over Europe and the Sahel using the atmosphere model OpenIFS. I found that European extreme precipitation is better represented at higher horizontal resolution, while the model time step has a limited effect on total precipitation extremes. For European winter precipitation, internal atmospheric variability dominates the variability, whereas SST forcing plays a relatively minor role. In contrast, Sahel summer precipitation responds strongly to AMV and IPV, with AMV mainly affecting the western Sahel and IPV mainly influencing the eastern Sahel.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Christian-Albrechts-Universität zu Kiel

Year

2026

Author dc:creator

• Liu, Yingxue

Contributors dc:contributor

• Kjellsson, Joakim
• Biastoch, Arne

• precipitation
• atmosphere model
• decadal variability

Repository record source_url

https://macau.uni-kiel.de/receive/macau_mods_00008406

OAI identifier oai:identifier

oai:macau.uni-kiel.de:macau_mods_00008406